|In 281–283 AC
During the campaign against the outlaws of the Kingswood Brotherhood, Sumner had to ransom Merrett back after he was captured by Wenda the White Fawn. After receiving a hard blow to the head from a mace in the next battle, Merrett was no longer able to fight. Unwilling to grant knighthood to Merrett, Sumner kindly sent Merrett back to the Twins. Jaime stopped Big Belly Ben from killing the Lord of Crakehall in battle.
—thoughts of Jaime Lannister
Sumner is described on several occasions as being an old man by Jaime Lannister when he squired for him in the late 270s AC. The current Lord of Crakehall, Lord Roland Crakehall, was likely his son and succeeded him after his death around the time of Robert's Rebellion.